HomeMy WebLinkAbout6.j. Authorize Preparation of North Centreal Sanitary Sewer Update, City Project #375r
+t CITY OF ROSEMOUNT
EXECUTIVE SUMMARY FOR ACTION
CITY COUNCIL MEETING DATE: October 7, 2003
AGENDA ITEM: Authorize Preparation of North Central Sanitary
Sewer Update, City Project 4375
AGENDA SECTION:
Consent
PREPARED BY: Andrew J. Brotzler, P.E., City Engineer
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AGEN
fy 6 J
ATTACHMENTS: Proposed Task and Fees
APPROVED BY: Jov
At the September 10, 2003 Committee of the Whole meeting, the 1997 North Central Sanitary Sewer Study was
reviewed. As discussed at the meeting, Staff is recommending that an update of this study be completed. This
update will include a review and update of the proposed improvements and estimated costs. _ Also as part of the
proposed update, funding alternatives will be developed along with a phasing plan for the completion of
improvements.
Attached for your review and consideration is a summary of the proposed tasks and fees provided by Dave
Hutton with WSB & Associates, Inc.
Staff is recommending Council authorization to prepare the North Central Sanitary Sewer Update.
N. Central Sanitary Sewer Study Update
City of Rosemount
WSB Project No. 1191 -23
WSB & Associates, Inc. will review and update the North Central Sanitary Sewer Study
that was prepared in March, 1997. The following tasks are identified to complete this
effort.
Task 1 Project Management
This task includes all coordination, meetings with staff, returning phone calls,
supervision of the project team to make sure the tasks are completed on schedule and
within budget, preparing monthly invoices and other administrative tasks. A meeting
with MCES staff will be conducted to determine any of their concerns, verify the
capacity of their systems and provide input into the assumptions build into this study.
Task 2 Data Collection
This task consists of reviewing all property files at City Hall to determine the condition
of the existing septic systems. All relevant mapping and other property information will
be collected. We will work with the City's planning dept. to verify all land use and
comp plan designations. The entire area will be driven to verify the existing land uses
and overall drainage patterns.
Task 2 Review Sewer flows /drainage areas
We will review the assumptions and calculations that went into developing the 1997
sewer flows and trunk system. We will also review the drainage areas using topography
maps to make sure the correct boundaries are used for each subwatershed. WSB will
work with the City planning staff to make sure the correct land use designation is used
for each parcel when calculating sewer flows.
Task 3 Review alternatives
The 1997 study included several alternatives including the use of lift stations and also
draining a portion of the City to the Eagan sewer system. We will look at those options -
to see if they are still relevant and make recommendations on the preferred option based
on not only initial cost estimates, but also long term, maintenance and life cycle costs.
We will also look for any new, reasonable alternatives that should be considered and
make recommendations regarding the ultimate options selected. As part of this task, we
would do a capacity analysis of the MCES interceptor system.
Task 4 Update Maps
Based on the analysis in Tasks 2 and 3, we will update the maps in the report
accordingly. Also, any sanitary sewer trunk systems that have been installed since 1997
that affect this area will be added to the maps. The most current land use map will be
incorporated into the final report.
Task 5 Cost Estimates
We will update the 1997 report cost estimates for 2003 bid prices and update any
quantities necessary as a result of the sewer study updates.
Task 6 Water system updates
The City does have a Comprehensive Water plan (1997, Bonestroo) But as part of
extending trunk sanitary sewers into the north central area, water main should be
considered as well. We will look at the water plan and incorporate the necessary
improvements into the overall phasing plan for the sewer improvements. Our budget
does not include updating the Comprehensive Water Plan or any new modeling, but we
will make recommendations on the water facilities that should be installed with the sewer
phasing.
Task 7 Develop Staging Plan
Based on the City's comprehensive plan, overall growth strategy, condition of existing
on -site septic system, development requests and funding, we will prepare a staging plan
for the extension of trunk sewer and water facilities into the North Central portion of
Rosemount.
Task 8 Funding plan
Once the cost estimates have been finalized, we will prepare a funding plan that would
include both trunk and lateral charges. Potential funding sources would include special
assessments, trunk charges, development fees, and City Core Sewer and Water funds.
Task 9 Prepare Draft Report
We would provide the City Council and staff with a draft revised report for review and
comment.
Task 10 Final report
Once we have made all revisions based on staff and Council comments, we will provide
the City with 20 copies of the final report.
Task 11 Public Participation
Involving the public will be very important for this study. There will be many existing
property owners that have an interest in the City's sewer study — both for City services
and against City services. There will be opposing views within individual
neighborhoods. In addition, developers and large landowners may have a different
interest altogether. We would propose the following public participation process.
a. Conduct an initial kickoff meeting for the entire area to explain what the
City's study will consist of
b, Hold up to four (4) individual neighborhood meetings to discuss the
specifics of their situation.
C. Conduct final open house /public informational meeting to present the
preliminary results prior to finalizing the report.
d. Attend Council meetings and worksessions as necessary. It is anticipated
that 2 worksessions and 2 Council meetings will be necessary.
Future tasks
Upon completion of the sewer study, the City may want to initiate the Phase 1
improvements. At that time, we would present the specific tasks and estimated fee to
prepare a feasibility report and final plans for the City.
Timetable
We are proposing to have the sewer study completed by March 31, 2004.
Ak Work Plan and Estimate of Cost
WSB N. CENTRAL SANITARY SEWER STUDY
&Associates, .
WSB Project No. 1191 -231
Inc
CITY of ROSEMOUNT
Oct.]. 2003
Feasiblity Report
Task Description
113.00
Project
Manager
Senior
Project
Engineer
Graduate
Engineer
Engr.
Technician
Office
Technician
Total
Hours
$7,910.00
1 $10,584.00 1
$10,332.00 1
$3,200.00
$936.00
$32,962.00
1
PROJECT MANAGEMENT
12
12
2
DATA COLLECTION
8
8
24
40
3
REVIEW SEWER FLOWS /DRAINAGE AREAS
4
4
24
32
4
REVIEW ALTERNATIVES
6
12
8
26
5
UPDATE MAPS FOR NEW SYSTEMS
4
12
16
6
UPDATE COST ESTIMATES
2
2
20
24
7
REVIEW WATER SYSTEMS PLAN /COSTS
2
4
8
4
18
8
DEVELOP STAGING PLAN
4
20
40
8
72
9
DEVELOP FUNDING PLAN /STRATEGIES
6
8
8
22
10
PREPARE DRAFT REPORT
6
20
8
10
8
52
11
PREPARE FINAL REPORT
2
4
4
6
4
20
12
PUBLIC PARTICIPATION
A. Initial public kickoff meeting
4
4
4
2
14
B. Neighborhood meetings (4)
16
16
4
2
38
C. Final open house /public info meeting
6
6
4
2
18
D. Council meetings /worksessions (4)
12
8
4
24
Total Hours 1
70 1
108
1 164
1 40 1
18 1
428
Hourly Costs
113.00
98.00
63.00
80.00
52.00
Labor Costs
$7,910.00
1 $10,584.00 1
$10,332.00 1
$3,200.00
$936.00
$32,962.00